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Method for brazing metallic honeycomb for exhaust emission control

A technology of exhaust gas treatment and metal honeycomb, which is applied in metal processing, metal processing equipment, welding equipment, etc., can solve the problems of high equipment cost, achieve the effect of loading and unloading, and reduce the processing process and equipment cost

Inactive Publication Date: 2011-08-17
EMITEC EMISSIONSTECHNIK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, an exact procedure should always be followed and requires a high equipment expense

Method used

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  • Method for brazing metallic honeycomb for exhaust emission control
  • Method for brazing metallic honeycomb for exhaust emission control
  • Method for brazing metallic honeycomb for exhaust emission control

Examples

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Embodiment Construction

[0035] figure 1 An embodiment variant of the metal honeycomb body 1 is shown schematically. In this case, the honeycomb body 1 has an essentially cylindrical shell 10 , but this is not absolutely necessary. A plurality of lamellas are arranged within the housing 10 , wherein here smooth lamellae 12 and structured lamellae 13 are stacked alternately on top of one another, are subsequently wound in an S-shape and inserted into the housing 10 . This is achieved by the S-shaped winding of the lamellae, all of which bear against the inner surface of the housing 10 with all ends 17 . Hereby is achieved the possibility of securely fastening each lamella to the housing at least at both ends. Due to the described arrangement of the smooth sheet 12 and the structured sheet 13 , contact points 16 are formed at which the sheets rest against each other. In this case, the contact point 16 viewed from the end face 11 runs essentially linearly through the honeycomb body 1 , but possibly on...

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PUM

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Abstract

The present invention relates to a method for brazing a metallic honeycomb (1) for exhaust emission control comprising at least the following steps: a) pretreating the honeycomb (1) at a temperature above 400 DEG C; b) cooling the honeycomb (1); c) brazing the honeycomb (1) at a temperature in the range from 1050 DEG C to 1100 DEG C under atmospheric pressure; d) cooling the honeycomb (1). A device suitable for carrying out the method is also provided.

Description

technical field [0001] The invention relates to the use of metal honeycomb bodies for the exhaust gas treatment of brazing, in particular for the exhaust gas treatment of mobile (vehicle) combustion gases of engines, such as spark ignition engines and / or compression ignition engines method. Background technique [0002] In addition to ceramic honeycomb bodies, which are used as support structures, for example, for catalytically active substances, there are also currently a large number of metal honeycomb bodies constructed from metallic materials. In this case, particular attention is paid to honeycomb bodies in which a plurality of parts are combined to form a honeycomb body. For example, metal plates, metal sheets, metal sheets and the like are used here. In this case, the thin plates (here used as a generic term for all the above-mentioned carrier materials) at least form the structure and are arranged with one another to form the channels. It is thus known, for exampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/012
CPCB23K1/012B23K2201/02B23K2101/02
Inventor H-P·卡斯珀H·科豪弗J·古托夫斯基D·绍切L·维尔斯
Owner EMITEC EMISSIONSTECHNIK